In article <1994Apr18.151548.1 at leif>, ldeng at kean.ucs.mun.ca (GEORGE XIAOXI
OUYANG, ELECTRICAL ENGINEERING, PHONE 579-0970) wrote:
> Hi! Dear Netters! I want to identify very little trace of mRNA in the cells
> by RT-PCR or Northern hybridization. I certainly want to show the RT-PCR
> signal is not come from DNA. So anyone can tell me what is the best way to
> extract RNA which is free of DNA?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Virtually impossible!
What is the best probe (for Lymphocytes)
> for the very-low-expression mRNA in Northern hybridization? Thanks in
> advance! Langtuo Deng at: ldeng at kean.ucs.mun.ca
1. Either try RNAse protection - more sensitive than Northerns.
2. Or try RT-pcr with primers that span at least one intron. - so if DNA
contamination it either will be larger product or Un-PCRable if too big.
Martin Leach
--
..... Martin Leach Email:leach at mbcrr.harvard.edu
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